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- W3112780997 endingPage "126004" @default.
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- W3112780997 abstract "In this study, a direct Z-scheme bismuth oxyiodide-molybdenum trioxide (Bi5O7I-MoO3) with uplifted visible light photocatalytic activity was fabricated for degradation of ibuprofen (IBU) via simultaneous calcination of BiOI and MoS2 precursors. The pristine and composite photocatalysts were characterized by various techniques prior to evaluation of the degradation activity. The XRD, FTIR, FESEM and TEM analysis confirmed that the Bi5O7I-MoO3 material with very close interface contact had been successfully fabricated in a composite. The UV–vis DRS results confirmed that the prepared photocatalysts is capable of absorbing visible light and that can improve the visible light photocatalytic performance. Under optimum conditions (catalyst dosage =20 mg and pH = 6.75), 15 mg L−1 of IBU was degraded with an efficiency of 89.2 % under visible light irradiation. The results displayed enhanced photocatalytic superiority towards IBU, which was attributed to the visible light harvesting properties and improved interfacial charge separation efficiency aided by the formed Z-scheme system, and increased life-time of charge carriers. According to the trapping experiments, O2−> OH > h+ played a crucial role in the degradation process in that given order. It was found that the Bi5O7I-MoO3 catalyst was stable with about 4.9 % lost in efficiency after 5 cycles of re-use. Furthermore, the effect of different environmental water parameters were tested in this study to mimic the real environmental water samples. The efficiencies obtained in these matrices were lower as anticipated. The total organic carbon obtained was 86.8 %. Thus, Bi5O7I-MoO3/visible light system shows great potential for applicability in treatment of wastewater contaminated by therapeutic compounds." @default.
- W3112780997 created "2020-12-21" @default.
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- W3112780997 date "2021-03-01" @default.
- W3112780997 modified "2023-10-17" @default.
- W3112780997 title "Synthesis of Bi5O7I-MoO3 photocatalyst via simultaneous calcination of BiOI and MoS2 for visible light degradation of ibuprofen" @default.
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- W3112780997 doi "https://doi.org/10.1016/j.colsurfa.2020.126004" @default.
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